Mechanical power

2. A device used to measure the effort produced by a twisting or turning force. It is based on the principle that if an opposite force equals the effort produced by a spinning object, movement will cease.
5. A simple machine based on the principle of the inclined plane.
9. A simple machine that makes use of sloping surfaces.
13. A long, cylindrical piece of metal used to transfer mechanical energy in many types of machines.
15. A lever that has the load placed between the fulcrum and the input force.
16. A lever, a pulley, a wheel and axle, an inclined plan, a screw, or a wedge.
18. The amount of hp necessary to overcome the internal friction of an engine and other forms of frictional loss.
20. A quantity that has both magnitude and direction.
21. A rigid bar that rotates around one fixed point.
23. A vector quantity that includes both distance and direction.

1. The ratio of the increase of force or distance by a machine, including energy lost through friction.
3. A vector quantity that includes speed and direction.
4. The amount of power available at the rear of the engine under normal conditions.
6. A simple machine consisting of a very long inclined plane wrapped around a shaft.
7. The fixed point around which a lever rotates.
8. A lever that has the fulcrum positioned between the input force and the load.
10. A solid disc that rotates around a center axis. It usually has a groove around the outside edge that allows ropes or belts to easily ride around them.
11. A specially shaped piece of metal used to support shafts and reduce friction between metal parts as they move past or revolve around each other.
12. A lever that has the input force positioned between the fulcrum and the load.
14. A mechanical device that connects the power source to the rest of the machine
17. A joint that allows connected shafts to spin freely, while permitting a change in direction.
19. A physical quantity specified by the magnitude of the quantity and expressed by a number or unit.
22. A large-diameter wheel and its small-diameter axle are attached to each other to move as one unit.